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use crate::{MutPtr, Ptr};
use std::slice;
pub trait Data {
type Output;
unsafe fn data(&self) -> Self::Output;
}
pub trait DataMut {
type Output;
unsafe fn data_mut(&mut self) -> Self::Output;
}
pub trait Size {
unsafe fn size(&self) -> usize;
}
pub trait VectorAsSlice {
type Item;
unsafe fn vector_as_slice(&self) -> &[Self::Item];
}
pub trait VectorAsMutSlice {
type Item;
unsafe fn vector_as_mut_slice(&mut self) -> &mut [Self::Item];
}
impl<V, T> VectorAsSlice for V
where
V: Data<Output = Ptr<T>> + Size,
{
type Item = T;
unsafe fn vector_as_slice(&self) -> &[T] {
let ptr = self.data().as_raw_ptr();
let size = self.size();
slice::from_raw_parts(ptr, size)
}
}
impl<V, T> VectorAsMutSlice for V
where
V: DataMut<Output = MutPtr<T>> + Size,
{
type Item = T;
unsafe fn vector_as_mut_slice(&mut self) -> &mut [T] {
let ptr = self.data_mut().as_mut_raw_ptr();
let size = self.size();
slice::from_raw_parts_mut(ptr, size)
}
}